Syringe-handle-forming machine



Jan. 30, 1923.

H. N. HALVERSEN.

SYRINGE HANDLE FORMING MACHINE.

8 SHEETSSHEET l FILED JAN. 26, I920.

INVENTOR ATTORNEY Jan. 30, 1923.

WITNESS:

H. N. HALVERSEN.

SYRINGE HANDLE FORMING MACHINE.

FILED JAN.26.1920.

a SHEETS-SHEET 2;

INVENTOR ,4 TTORNE Y J an. 30, 1923. 1,443,470.- H. N. HALVERSEN.

SYRINGE HANDLE FORMING MACHINE.

man JAN- zs. 1920. a SHEETSSHEET'3.

g Q, WITNESS: a INVENTOR A M 2t v N BY i D/aZZZL MM g Q Q ATTORNEY Jan. 30, 1923. H. N. HALVERSEN.

SYRINGE HANDLE FORMING MACHINE.

FILED JAN. 26, 1920. 8 SHEETSSHEET 4.

\ TE a imals-ennui WI TNESS:

INVENTOR Maw x/w 44% WZM-M A TTORNE Y Jan. 30, 1923.

1,443,470. H. N. HALVERSEN.

SYRINGE HANDLE FORMING MACHINE.

FILED JAN.26,1920. 8 SHEETSSHEET 5- WITNESS:

- INVENTOR A 77 OR/VE Y Jan. 30, 1923.

H N HALVERSEN SYRINGE HANDLE FORMING MACHINE.

8 SHEETSSHEET 6.

FILED JAN. 26, I920.

I.// Mw I Jan. 30, 1923.

H. N. HALVERSEN.

SYRINGE HANDLE FORMING MACHINE.

FILED JAN. 26, 1920.

8 SHEETS--SHEET 7.

WITNESS: IN VE N TOR A TTORNE Y Jan. 30, 1923.

1,443,470. H. N. HALVERSEN.

SYRINGE HANDLE FORMING MACHINE. FILED JAN.26, 1920.

8 SHEETSSHEET 8.

WITNESS:

INVENTOR W ZVM/ A TTORNEY Patented Jan. 30, 1923.

UNITED STATES PATENT OFFICE.

HANS N. HALVERSEN, OF VINELAND, NEW JERSEY, ASSIGNOR TO KIMBLE GLASS COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SYRINGE-HANDLE-FORMING MACHINE.

Application filed January 26, 1920. Serial No. 354,304;

'1 '0 all whom it may concern.

Be it known that I, HANS N. HALvEnsEN, a citizen of the United States, residing at Vineland, in the county of Cumberland and State of New Jersey, have invented certain new and useful Improvements in Syringe, Handle-Forming Machines, of which the following is a specification.

This invention pertains to appliances for the automatic manufacture of syringe handles and similar articles, such handles being used for the reciprocation of plungers or pistons in glass or analogous tubes or cylinders forming the main bodiesof the syringes. These glass rod handles or piston or plunger rods' have spaced enlargements or circular ribs at one end between which the rubber or other suitable apertured piston or plunger is fitted, its central perforation receiving the body of the rod and the piston being prevented from lengthwise or longitudinal displacement on the rod by the enlargements or ribs on its opposite sides. At the other end of the handle rod it has another pair of spaced ribs or enlargements bymeans of which a firm and secure grasp may be had on the rod by the fingers of the operator/ In' the finished syringe an apertured rubber plug fits in and closes one end of the cylinder or tube and the handle ex-- tends through and is adapted to reciprocate in the hole of such plug. It is necessary, therefore, to apply one of such plugs to each handle before the enlargements are formed on the second end, the plug or tube closure occupying a position between the two pairs of ribs.

One of the salient and outstanding characteristics of this improved machine is its capability of acting on the glass-rods automatically in succession to heat and provide one setof enlargements on their one end, apply the rubber plugs to such rods, and then form the second set of enlargements on the rods on the other sides of the plugs. y

A paramount feature of such machine is its capacity for performing such work with facility and dispatch, with accuracy, and with little likelihood of breakage of the rods acted upon.

A further object of the invention is the production of a machine which will do this work effectively and whlch shall be relatively simple in its structure considering the functions which it accomplishes, which will operate with accuracy and efiiciencv, whlchis unlikely to become damaged or inured 1n service, which will require but little attention on the part of the operator, and which can be constructed and operated economically.

be portrayed in such views.

In these drawings:

Figure 1 is a front elevation of the machine;

Figure 2 is an elevation of the right-hand end of the appliance;

Figure 3 is a plan-view of the mechanism with the supply magazine omitted;

Figure 4 is a vertical cross-section showing the means for applying the rubber plugs to the glass rods;

Figure 5 is a detail of the plug gripping mechanism;

Figure 6 is another vertical cross-section;

Figures 7 and 8 illustrate the means for holding the glass rods in their seats during the upsettingof-their heated sections;

Figures 9, 10, and 11 show the pusher mechanism for upsetting the rods;

Figure 12 depicts the means for supporting, rotating, and heating the rods; and

Figures 13 to 16 inclusive relate to the supply magazine and its rod feeding mechanism, Figure 13 being a plan view and F igure 14' an elevation with the front wall of the structure removed.

Referring to the drawings, it will be seen that the machine includes a main-frame 20 of suitable irregular shape equipped at one the element 33 has an apertured depending what different and referred form is illustrated in detail in igures 13 to 16 inclusive.

By reference to these latter figures, it will be observed that the part 21 carries a horizontal, cross, under-cut, guide-rib 22 on which two blocks 23 and 24 are adjustable by means of clamps 25 and screws 26 to vary the width of the magazine, such blocks having mounted thereon two, opposite, magazine, side-wall plates 28 and 29 spaced apart a distance approximately that of the length of the glass-rods 50 to be accommodated between them. T-he magazine has an inclined bottom-plate 30 with an upturned end 31,

secured by screws 32 on a bracket-arm 33 rockingly mounted on a stationary-rod 34 .held in a socket 35 on an extension 36 of the part 21 and to permit adjustment of the, angular disposition of such bottom wall,

lug 37 loosely accommodating-an adjustment screw 38 taking into a threaded part 39 of.

the member 21, a coil-spring 40 being employed encircling the screw and bearing at 7 its opposite ends on the parts 37 and 39.

Obviously, by turning this screw the angular position of the bottom wall may be modified,

as, for instance, when it is desired to employ a of the magazine, provided with a rather long slot 44- a ccommodating two screws 45, 45each securing against the under side of the bar a block 46 to which an inclined frontplate 47 is fastened, these two elements 47, adjustable by the slot and screw connections crosswise the magazine, constituting its front wall for the retention of in alignment beyond the bars 46 to provide a seat or saddle 49 for one of the glass rods 50 adapted to be stored in the magazine and to be delivered therefrom one by one to such seat by mechanism about to be described.

An inclined chute corresponding in depth to the diameter of the glass rods is found between the bottom faces of the blocks 46 and the underlying legs 48 of the plate 30, thus automatically forming in the chute a single row of abutting glass rods, as shown in Figure 14. To control'the intermittent delivery of such rods one byone the seat 49, an arm 51 with a lateral lug 52 is rockingly mounted on a shaft 53 fixed in a socket on the frame 21, the free end of the arm carrying one or more retaining fingers 54 adapted to lie in front of the lowermost glas rod in the chute asindicated in Figure it by gravity to roll down into the seat 49.

To prevent more than one rod being released or discharged at the same time, it

is necessary to temporariily restrain the downward movement of the other rods in the chute, and, for this purpose, two fingers 55, 55 are rockingly mounted on a rod 56 in the lower end of a bifurcated rock-arm 57 oscillatory on a fixed shaft 58 supported from the casting 21 and normally pressed to swing down by a torsion spring 59 surrounding the shaft. Each of these fingers is angularly adjustable on its supporting rod or shaft by a screw 60 and a spring .61 surrounding the screw and interposed between the finger and the rock-arm. Also oscillatory on shaft 53 are two spaced arms 62, 62 on opposite sides of-the hub of element 51 and connected together beneath the shaft by the web or-connecting bar portion 63 having a depending extension 64 pivotally associated with one end of an operating link 65. Such arms 62 are roughened or notched at their upper ends which project into the lower portion of the magazine and act as agitators to prevent clogging of the lass rods and to facilitate their proper eeding into the entrance end of the discharge chute. As is clearly shown in various figures of the drawings, the rear arm 62 has a lug 66 underlying a projection 67 on arm 57 and the front arm 62 has a portion 68 overlying the lug 52 on arm '51. Beneath arm51 web 63 has an extension supporting a coil-spring 69. When the element 64 by means of link 65 is swung to the left, thearms 62, 62 descend and deliver one-of the lass rods from the magazine into the incllned chute the descent of lug 66 being followed by lug 67 and arm 57 under the action of the torsion spring 59.

Such rocking of the member 57 lifts the fingers so that they project between the lowermost rod in the chute and the one next above it. Continued descent of arms 62, 62 causes lug 68 by engagement with ear 52 to swing arm 51 down, thus depressing retainer 54 freeing the single rod and permitting it to roll down'into'the exposed seat 49.' Then when the link 65 moves to the right, spring 69 returns the parts 51 and 54 to position and lug 66 restores ele-V ment 57 and its fingers 55 to position, as

with a number of aligned or registering seats or depresslons 73 to 81 inclusive, constituting saddles or cradles for the glass rods during their interrupted or intermittent travel along the machine. A suitably-constructed rod conveyor or transporter is adapted to pick up the rod 50 in the seat 49 (Figures 1, 13, and 14) of the supply magazine and deliver it into seat 73 and from such latter depression into the other seats in succession. This conveyor or rod carrier comprises two spaced, parallel, horizontal plates 91, 91 disposed in vertical planes (Figure 2) with uneven top edges equipped with a number of cavities 92 (Figure 1),

' these plates being mounted on brackets 93,

93 (Figure 2) adjustable in guideways 95, 95 in the end portions 94, 94 of a casting 96 pivotally connected at 97, 97 (Figure 1) to the upper ends of a pair of upright skeleton-links 98, 98 rockingly supported at their lower bifurcated ends on short shafts or rods 99, 99 in the ends of rockarms 101, 101 fulcrumed or hinged at 100, 100 on stationary rods or short shafts projecting forwardly from the main-frame 20.

The two upright supporting links 98, 98 are rocked or oscillated in unison or synchronism by a substantially-horizontal link 102 (Figures 1 and 2) extended through the right-hand member 98 and pivotally connected at 103 to the companion left-hand link, the other end of the horizontal link having a pivotal connection at 104 with one arm of a bell-crank lever 105 fulcrumed on the mainframe at 106, the other or practically-hori zontal arm of the bell-crank being pivotally connected with an upright-link 107 rockingly connected at 108 to the forward end of a lever 109 fulcrumed at the lower rear portion of the main-frame at 110 and having an upstanding extension 111 carrying a roller 112 in the cam-groove 113 of a cam element 114 fixed on a suitably-journaled longitudinally-disposed camshaft 115 rotated through suitable gearing by a belt 116 (F igure 6). It will be perceived, therefore, that the cam causes the proper timed oscillation of the supporting arms 98, 98 and the rod conveyor which they carry.

It is also necessary to cause a rise and descent of the conveyor and this is effected by means of the following co-operating instrumentalities A pair of right-angle links 117, 117 (Figures 1 and 2) connects the pivot or hinge pins 99 with a shaft 118 in the forwardlyextended arms 119, 119 of a frame 120 also fulcrumed at 110, the right-hand arm of such rockin -frame having an upwardly-extended portion 121 (Figures 1 and 2) carry- .ing a roller 122 in a cam-groove 123 cut in the opposite or inner face of cam 114. v

By means of this compound mounting. conveyor 91, 91, as viewed in Figure 1, is caused to move to the left, then upwardly, then to the right, and then downwardly, this cycle being repeated indefinitely. During such movement of the conveyor, all of the rods 50 are lifted from their seats in the stationary supports 72, 72 and each is transferred and deposited in the next seat to the right, all as will be readily understood. Such completeseries of rods has not been'shown in Figure 1.

Adjacent to the seat 76 and located between the parallel plates 72, 72 are two pairs of overlapping anti-friction rollers or discs 124, 124 and 125, 125 (Figures 3 and 12) on the upper edges of which the glass-rod is adapted to rest, rather than in the seat 76, so as to give an anti-friction mounting for the rod to facilitate its rotation about its own axis. Vhile the rod is resting on such rollers or discs two sets of gas-flames 126, 126 and 127, 127 (Figure 3) from burners 128, 128 and 129, 129 equipped with compressedair tubes or nozzles 130 play upon the inner end portion of the rod and upon a section thereof somewhat removed from such end, all as is clearly illustrated in Figure 3. I

To rotate the rod during such heating action, a beveled rubber-roller 131 (Figures 1, 3, 6, and 12) is provided, which bears on the upper side of the glass-rod and by friction revolves it on its axis, such rubber-disc being mounted in any approved manner on a shaft 132 (Figure revoluble in a bearing 133 forming part of a frame 134 having spaced bearings 135, 135 on a revolublymounted back-shaft 136 equipped at one end on a sleeve loose on the cam-shaft 115, such sleeve having a pinion meshing with a larger gear on the jack-shaft 142, the rotation of the latter being transmitted to the slower speed cam-shaft by a pinion on the jackshaft in mesh with a larger gear on the cam-shaft, which ordinary style of gearing it has not been-deemed necessary to illustrate.

The upper back-shaft 136 is thus constantly rotated clockwise as viewed from the right-hand end of the machine, and this rotation is transmitted to the shaft 132 by. intermeshing bevel-gears 145 and 146 (Figure In similar manner the companion but reversely-arranged frame 147 also rockingly-mounted on shaft 136, supports another beveled rubber-disc- 148 at the other end of the machine carried on a shaft 149 revolved by bevel-gears 150 and 151 on shafts 136 and 149 respectively. The extent of descent 'of'these two frames and their screws 155 and 156 extended through threaded holes in ears of the two frames.

Element 152 is oscillated or rocked by means of a link 157 (Figure 6) pivoted thereto at its top end at 158 and at its lower end pivoted at 159 to a bent-arm 160 rockingly supported on a shaft 161 and carrying at its lower end a roller 162 accommodated in a cam-groove 163 of a cam 164 fixed to the cam-shaft 115 previously referred to.

Beneath the inner end of the glass-rod resting on the rollers or discs 124 and 125 a stationary anvil 165 is positioned (Figures 6 and 7), its top face being suitably recessed or notched for the accommodation of the end portions of the rod, and, in order to hold the rod down on such anvil during the upsetting operation of its heated sections an in-, verted U-shaped holder 166 (Figures 7 and 9) is employed, mounted on an arm 167 fixedly clamped to a shaft 168 oscillatory in a pair of bearin 169, 170 forming part of a bracket 171 fastened to the rear of the main frame. Shaft 168 also carries a bent rod 172 adapted to hold the opposite end portion of the glass-rod down in the seat of the stationary support or on the anti-friction rollers. Between the bearings the shaft has an arm 173 (Figures 7 and 9) rigid therewith and normally forced upwardly by a coilspring 174 surrounding or encircling a screw 175, such spring bearing against the under face of the arm and on the nut 176 adjustable on the screw whereby the spring normally tends to rock the two holders 166 and 172 down to their work. The head end of the screw extends-upwardly through a hole in the left-hand one of two diverging arms 177, 177 (Figures 7 and 8) of a member 178 rockingly mounted at 179 at the center of the back of the machine beneath the top shaft'136 on a bracket 180 carried on the back of the main-frame.

A pair of these rod-holders 166 and 172 is used ateach end of the machine, and it will be readily understood that the one arm 177 operates one pair of holders and the other or companion arm 177 actuates the other pair, these holders and their operating means having been given the same reference characters for both ends of the appliance.

Element 178 is rocked or oscillated by a reversely-curved link 181 (Figures 6 and 7) pivoted at 182 to a lug on the underside thereof forwardly of its hinge mounting, and

having at its lower end an adjustable connection at 183 with an arm 184 fulcrumed on a part 185 and having a pivotal connection with a rock-arm 200 described hereinafter.

To upset or enlarge the spaced, heated, or partially or wholly fused sections of each glass-rod rotating on the rollers or discs 124 and 125, a reciprocatory front pusher 186 and an aligned or registering rear pusher 187 are employed. Such front pusher is slidingly mounted in bearings at the top of a bracket 188 carried by the corresponding forwardly-projecting supporting rod and is reciprocated through an adjustable connection 189 (Figure 6), including a casting 189 clamped on the pusher, by the uprightarm of a bell-crank lever 190 fulcrumed on the bracket at 191. Such adjustable and yielding connection 189 comprises an adjusting screw 189 (Figure 6) bearing against one side of the bell-crank arm, a block 189 being pressed against the opposite side of the arm by a spring 189 interposed between the block and the casting.

By means of a short upright connecting link 192, the other or rear end of the bellcrank lever is operatively associated with the front end of one arm 193 of the threearmed element 194 hinged or fulcrumed at 195 in a suitably-supported bracket 196 in the top portion of which the rear pusher 187- is slidingly mounted. a

The upright arm 197 of such element 194 is in like manner adjustably connected to and adapted to slide the rear pusher recip- 10o rocatory in the bracket 196. lhe rear arm 198 of the member 194 is connected by a link 199 to a rearwardly-extended arm 200 of the element 185 which carries a roller 201 at its lower end in a cam-groove 202 in. the side of cam 164.

The other end of member 185 has an arm, 203 (Figure 2) which by similar connections and. given the same reference characters operates a pair of aligned front and rear pushers'204 and 205 (Figure 2) respectively, at the right-hand end of the machine, as viewed in Figures 1 and 3.

The front pusher 186 and the rear pusher 205 in each instance may be constructed as 5 shown in F igure 10, comprising a' tube 206 (to which the casting 189 is clamped) fitted with an apertured plug 207 fixed therein through which passes a central rod 208 threaded into a head 209 adapted to engage 2 the end of the glass rod and equipped at its other end with a plunger 210 adapted to slide in the tube,. the latter accommodating a spring 211 encircling the rod and hearing at its opposite ends against the plug and plunacting .as a gauge against which the glass rod bears to hold its other end portion in roper relation to. the anvil and gas-flames. he yielding connection 211 between the arm 190 and the connected parts 209, 210, permits variation of the gauge adjustment without interference with the action of the op-.

erating mechanism. By reason of the spring 189', the power is transmitted yieldingly to the glass rod and the stroke of the pusher maybe varied by adjusting screw 189'.

As is illustrated in Figure 3, the rearwall 72 terminates at the point 212 and. the front-wall has a relatively-large cutout ortion 213 in register with an elon gated rod seat or. saddle 214 on which the glass-rod is more or less firmly held by a bent rod or finger 215 (Figures 3 and 6) rockingly mounted on the pivotal support of the diverging-arm member 178 and having a rearwardly-extended tail 216 (Figure 3) pulled upwardly by a coil-contractile spring 217 connected thereto and to a crosspin in the rear portion of the rocking member 152. This tail-piece 216 is apertured to receive the reduced-diameter lower-end portion of a screw or rod 218 swiveled in the 'member 215 and capable of suitable adjustpiece 221 adapted-to simultaneously bear on two of the glass-rods located in seats 82 and 83 of the main support, the latter seat being of some little length as shown in Figure 3, and the seat 82 having in register therewith a supplemental rod support 219. Arm or finger 220 is likewise rockingly mounted on the pivot or hinge pin or-sha-ft of the part 178 and has a rearwardly-extended tail-portion 222 held upwardly by a spring 223 connected to. the part 152 and also apertured for the reception of the lower reduced-diameter portion of a screw or rod 224 swiveled to the part 152 as is clearly shown. The con nections of both of these tail-pieces 216 and 222 are alike so that full and complete illustration of one suflices for both.

In order to push or slide the rod for wardly into proper position in the middle portion of the machine, the latter is provided with a slidable shaft 225 (Figure 6) carrying at its front end a plate226 (Figures 3 and 6) adapted to engage the inner ends pf severalof the rods and push them forwardly all at the same time. and for the purpose of reciprocating such rod or shaft, it is equipped with a clamp 227 (Figure 6) asso iated with a spring-pressed plunger 228. both of which are actuated by one arm 229 of a bell-crank fulcrumed at 230, the other arm of such bell-crank being connected by an uprightdink 231 with the shaft or pin 158 of the part 152.

syringe plugs 233 adapted in the completed syringe to close one end of its glass-tube and through the aperture of such plug the completed glass-rod 50 with a rubber piston or plunger thereon is adapted to reciprocate. The finished glass-rod 50 has two enlargements or circular ribs near one end to constitute a handle, and two similar enlargements or ribs near the other end which hold the piston or plunger in position between them, and the perforated plug 233 is positioned on the rod between such pairs of enlargements. It is, therefore, necessary to apply one of such plugs to each glass-rod after the latter has been supplied with enlargements at one end and before the enlargements have been formed near the other end.

To remove the foremost rubber-plug 233 from the bent supply-rod 232 and apply it to the registering glass-rod 50 residing in the seat or saddle 214, a shifter 234 is mounted on the top end of an upright rod 235 (F igures 2 and 4), such rod also carrying two bent wires 236 and 237 provided to co-operate with the rubber-plugs of the two glassrods to the right of that one in the saddle 214 and push such plugs rearwardly to the positions clearly illustrated in Figure 3. Thus, one of the rubber-plugs is applied to the rod in the seat 214 and simultaneously with such action the two previously-applied plugs on two adjacent rods are fed further forward on their respective rods which are held from movement by the bar 226. Referring to Figure 2, it will be seen that the means for actuating these three rubber-plug co-operating members and their supportingrod comprises mechanism which causes such plug-shifters to move rearwardly, then upwardly, then forwardly, then downwardly, and then again rearwardly, etc. This mechanism includes a block 238 secured to the rod 235 to which a block 239 is swiveled, the latter having fastened thereto a rearwardlyextended horizontal rod 240 pivoted at the back end at 241 to a bifurcated part of an arm-242 fulcrumed loosely onthe longitudinal shaft 161 at the back of the machine. At the extreme right-hand end of the machine. this arm 242 which has two widelyspaced bearings on the shaft, not fully illustrated. is equipped with a forwardly-exalso. give it a vertical travel, its lower end is fitted with a bent-arm 245 having a sleeve (not shown) on the shaft 118 which extends across the front portion of the rocking frame 120. Rod 235 is pulled rearwardly by a c011- contractile spring 246.

' downwardly to assure their proper feeding without interruption or space or gap between them. Inasmuch as this rod 235 has a movement toward the part 232, then downwardly, then away from such part, and then upwardly, it will be obvious that such pressure on the plugs is exerted during the downward movement of the fork.

The end portion of the horizontal part'of the bent rubber-plug supply-rod 232 is supplied with two channel-shaped upper and lower grippers 248, 249 which grasp between them the first six plugs on thero and feed them along the latter just after the part 234 has pushed the foremost plug on to the registered glass-rod. The edges of these grippers are desirably-notched to grasp the endmost plug and when the fork 234 comes over the row of plugs, it straddles the cut-away end portion of the top gripper 248 and removes the first or foremost plug from its grasp. 'These two companion grippers 248, 249 separate vertically, then move toward the front of the machine, then approach one another grasping a group of the plugs between them, and then move to the rear toward the glass-rods, thus positively feeding the plugs within their grasp along the rod 232.

In order to cause such movement of the parts, the following instrumentalities are provided:

A bracket 250. (Figure'4) is mounted on and extends forwardly from the main-frame of the machine and adjustably secured on mg a bearing at its lower bent end in which is rockingly mounted at 252 an upright arm or rod 253 oscillated by means of a horizontal adjustable screw-threaded rod 254 swiveled thereto at 255 and connected at its rear portion at 256 to'the top end ofa bell-crank lever 257 fulcrumed on the shaft 161, its other or downwardly-extended arm carrying an anti-friction roller 258 riding on the camshaped periphery 259 of a cam 260 on shaft 115. If the weight of this bell-crank and the parts associated with it are not sufficient to maintain the roller at all times on its co-operating cam surface, such bent lever may be supplied with a coil-contractile spring to assure such contact and the rod 254 is desirably surrounded by a coil-spring 261 bearing at one end against the swivel and the connection with the part 253' and at the other end with a collar 262 on the rod.

These coacting elements, as will be readily appreciated, effect the forward and backward swinging 0f the supporting bar 253 grippers which it carries at its upper end.

The vertical separation of thecompanion grippers 248 and 249 is 'con'summatedby a bent rod 263 connected to the front-end of a round rod 264 fixed to a rock-arm 265 on shaft 110 and provided with a roller 266 on its upper end traveling in a cam-groove 267 out in the face of cam 260. Gripper 249 is fixedly mounted on the element 253 (Figure 5) whereas, the complementary gripper 248 is fulcrumed on such element and has an extension operatively connected to the upper end of part 263. When member 263 is up as shown in Figures 4 and 5, gripper 248 presses down on the rubber-plugs and their supporting-rod 232 bringing them against the lower gripper 249, thus clamping the plugs between such grippers. When part 263 is pulled down. by the action of cam 260 the upper gripper is raised, allowin rod 232 to spring upwardly slightly, lifting the plugs away from the lower gripper," thus permitting the grippers to move longitudinally without touching the plugs. Of course, when the grippers move back toward the glass-rod they are then grasping the series of plugs. i

Part 251 has an upward curved extension carrying an abutment block 268 (Figure 4) and opposite this and adapted to press or squeeze the plugs between them is a presser 269 on an arm 270 hinged at 271. Element 269 is actuated through an apertured bent bar 272 through the hole of which a rod 275 extends, springs 273 and 274 surrounding the rod bearing against opposite sides of the bar and against the shoulders or collars 276 and 277 on the rod, the lower end of the latter being hinged at 278 to the member 264. Lever or rock-arm 270 may also be provided with an upwardly-extended spring '27 9 to engage the rubber plugs opposite the fork 247 to prevent the supporting rod 232 bending away from such element.

It will be observed that the elements 247, 234, 236, and 237 are all on the same arm and are operated together. As the part 247,

the member 275, and consequently the part 263, take a downward motion, causing the clamp clamp 269 to hold them against the opposite side of the chute. Member 263causes the jaws to open, and while they are thus open,

' the part 253 which carries the jaws moves to the left the space of one rubber. Jaws 248 and Y249 close on the rubbers, this action bein icaused by the rod 263 moving upwar 1 which also moves rod 275, releasing the part 269 and causing clamp 268 to contact with the rubbers again. The elements 247and 234 move to the right, which places the foremost rubber on the glass rod. Then the part 253 moves to the right car ing the closed jaws and enclosed rubbers wit it. In this period of movement the row of rubbers has advanced one rubber.

At the right-hand portion of the machine another set of gas-burners 280, 281 are provided for heating spaced sections of the front portion of the rod after the application of the rubber plug thereto, and the pushers 204, 205 act in conjunction with another anvil 282 (Figure 2) to form the two enlargements or circular ribs on such part of the rod. Inasmuch as this mechanism is much like that at the left-hand part of the machine except that it is reversed, no further description is necessary. The notched supports for the rods at this portion of the machine are nearer together as is desirable because of the shape and condition of the completed handle. By any suitable means, the finished rod or handle is delivered from the machine into an appropriate receptacle, not shown.

The operation of the appliance occurs practically as follows:

Each glass-rod 50 is fed from the magazine in the manner described and delivered into the seat or saddle 49. At the proper moment, it is picked up by the conveyor and transferred step by step or from seat to seat and deposited on the anti friction rollers 124, 125. Thereupon the frame 134 swings down, bringing the beveled revolving rubber disc 131 into contact therewith, whereby the glass-rod. is revolved and by reason of the beveled edge of the disc is held against the front pusher 186 which acts as a gauge. Also the two holders 167 and 172 descend into holding contact with the rod. When the rotating rod has been sufliciently heatedby the gas-flames at the separated points, the gas flow is automatically substantially reduced, thus ending the play of the flames on the rods. Thereupon, the rear pusher approaches thefront one upsetting or enlarging the rod at the points 283 and 284 by pressure against the anvil 165 and the rear'face of the stationary support 72. Then the driving disc 131 and the holders 167 and 172 ascend and the par- 268 to release the rubbers and thetially-completed rod or handle is carried step by step into the support 214 being pushed forwardly during such intermittent transportation by the reciprocation. of plate 226. Having arrived in the seat 214 and while held therein by the member 215 and prevented from backward movement by the element 226, the rod has the foremost rubber plug on the'wire 232 applied thereto by the plug shifter 234. As has been described fully above, these rubber plugs are advanced along their supporting rod or wire so that one is always ready for application to the glass rods as they arrive in register therewith and temporarily remain in alignment with the end; of the wire- Soon afterward the rod is transported-to the next seat 82-219 and while the rod isheld by the element 221 the rubber plug is pushed on further by the member 236. The rod is then carried to the next seat 83 and while held stationary therein by the foot 221 the rubber-plug is advanced still further by the shifter 237. During all of such movements of the plugs on the rods the latter are held, from lengthwise movement by the then stationary plate or bar 226. By intermittent movements the rod and its plug are carried to the right to the second group of anti-friction rollers, is held thereon by holding ele ments corresponding to the parts 166 and 172, and is heated at its front end'portions by the flames from the burners 280 and 281 pushers 204, 205 approach one another and produce the enlargements 285 and 286 on opposite sides of the anvil 282. The pushers now separate and the holders and disc ascend, thus permitting the conveyor to transport the now complete rod for handle step by step or from seat to seat to the delivery end of the machine, the heated sections or enlargements of the rod in the mezintime having had a sufficient period to coo v Although the progress of one rod only through the machine has been set forth above, it will, of course, be understood that a series of such rods are traversing the appliance at the same time and a plurality of them are simultaneously operated upon. In fact the conveyor transfers them all one step at the same time.

Whereas, in this application only one preferred and desirable embodiment of the invention has been illustrated and described in detail, it is to be understood that the invention is susceptible of a. variety of embodiments differing more or less in structural details but all embodying the main 7 not limited and restricted to the precise and exact structural and functional characteristics specified because these may be modified or varied within comparatively wide limits without departure from the substance and essence of the invention and without the sacrifice of any of its substantial benefits and advantages.

I claim:

1. In an appliance of the character described, the combination of means to heat and form an enlargement on a glass-rod, means to apply a perforated body on said rod with the latter accommodated in the perforation, and means to heat and form an enlargement on the rod on the side of'said body opposite that of the first enlargement, substantially as described. I

2. In an appliance of the character described, the combination of means to heat and form an enlargement on one portion of a glass-rod when in one position in the machine, means to subsequently heat and form a second enlargement on another portion of the rod when the latter is in a different position in the machine, means to apply a perforated body on said rod with the latter accommodated in the perforation between the forming of said enlargements, and means to cenvey the rod through the ma chine, substantially as described.

3. In an appliance of the character described, the combination of means to simultaneously heat spaced portions of a glass rod, means to simultaneously form a plurality of spaced enlargements on the glassrod, means to subsequently simultaneously heat other spaced portions of the rod, means to simultaneously forin another plurality of spaced enlargements on the glassrod, and means to convey the rod through the machine, substantially as described.

4. In an appliance of the character described, the combination of means to simultaneously heat spaced portions of a glassrod, means to simultaneously form a plurality of spaced enlargements on a glassrod in one position in the machine, means to subsequently simultaneously heat other spaced portions of the rod when the latter is in a different position in the machine, means to simultaneously form a plurality of spaced enlargements on the rod, and means to convey the rod from the one position to the other, substantially as described.

5. In an appliance of the character described, the combination of means to simultaneously heat spaced portions of a glassrod, means to simultaneously form a plurality of spaced enlargements on a glassrod, means to subsequently apply a perforated body on the rod with the latter accommodated in the perforation, means to later heat other spaced portions of the rod on the side of said body opposite that of the first enlargements, and means to form a plurality of spaced enlargements at such heated sections, substantially as described.

and means to subsequently heat and form a plurality of spaced enlargements on the rod on the side of the body opposite that of the first enlargements and when the rod is in a third position in the machine, and means to convey the rod through the ma chine, substantially as described.

7. In an appliance of the character described, the combination of means to heat and form an enlargement on a glass-rod in one position in the machine, means to later apply a perforated body on said rod with the latter accommodated in the perforation of the body and while the rod is in a second position inthe machine, and means to subsequently heat and form another enlargement on the rod on the side of the body opposite that of the first enlargement and while-the rod is in a third position in the machine, and means to convey the rod through the machine, substantially as described.

8. In an appliance of the character described, the combination of a supply-wire on which a plurality of perforated bodies are adapted to be strung, means to convey a series of glass-rods individually in succession into register with said wire, and means to slide the foremost ones of said bodies on said wire and apply them to said rods in sequence with the rod accommodated in the perforation of the body, substantially as described.

9. In an appliance of the character described, the combination of a supply-wire on which a plurality of perforated bodies are adapted to be strung, means to feed such bodies along said wire, means to convey a series. of glass-rods individually in succes- S1011 int-o register with an end of said wire, and means to apply the foremost one of said bodies to said rods in sequence with the rod accommodated in the perforation of the body, substantially asdescribed.

10. In an appliance of the character described, the combination of a supply-wire adapted to accommodate a plurality of abutting perforated resilient bodies strung there on, means to compress a portion of such bodies and cause their feeding along the wire by their expansion when released, means to convey a series of glass-rods individually in succession into register with an end of said Wire, and means to apply the foremost one of said bodies to said rods in sequence with the rod accommodated in the perforation on the body, substantially as described.

11. In an appliance of the character de-' scribed, the combination of a supply-Wire adapted to accommodate a plurality of perforated bodies strung thereon, said Wire having a substantially-horizontal delivery.

the rod accommodated in the perforation 20 of the body, substantially as described.

HANS N. HALVERSEN. 

